Cast Component Having a Cast-In Pipe and Production Method

Abstract

A metallic cast component (100), which is a housing component, includes a cast body (110) and at least one pipe (120) cored in the cast body (110) and through which a medium (F) is flowable. The pipe (120) includes a pipe connection (121, 122) formed at or in a surface of the cast body (110) on at least one of pipe end of the pipe (120). The pipe (120) also includes, at the pipe end, an enclosing bush (130) embedded in the cast body (110). The enclosing bush (130) effectuating a seal between the pipe end and the cast body (110). A method for manufacturing such a cast component (100) is also provided.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]The present application is related and has right of priority to PCT Application No. PCT / EP2018 / 071962 filed on Aug. 14, 2018 and to German Patent Application No. 10 2017 217 387.4 filed on Sep. 29, 2017, both of which are incorporated by reference in their entirety for all purposes.FIELD OF THE INVENTION[0002]The invention relates generally to a cast component that includes at least one cored pipe, through which a medium can flow. The invention further relates generally to a method for manufacturing this cast component.BACKGROUND[0003]DE 10 2012 223 156 A1 describes a housing (exhaust gas valve housing), which includes at least one heating or cooling duct, which is a pipe enclosed by the housing. The ends of the pipe are designed for the connection of a line. The housing is made of die cast aluminum and the pipe is made of aluminum or copper. In order to manufacture the housing, the preformed pipe is placed, in the manner of a core, into a...

AI Technical Summary

Benefits of technology

[0010]With the aid of the bush, which is attached at the pipe end and is embedded in the cast body and / or the cast body surface, a gap seal at the pipe connection is achieved. On the one hand, the (inner) connection between the bush and the pipe end is tight. On the other hand, the bush is embedded into the metallic casting material in such a way that this (outer) connection is also tight. In particular, there is a micro-form-locking and / or integral bond between the embedded bush and the enclosing casting material. In example aspects, the invention therefore does not attempt to prevent a gap formation by optimizing the connection between the casting material and the pipe, but rather seals off any gaps between the casting material and the pipe at the cast body surface with the aid of a bush. As a result, at the connection of the pipe, the medium, which is to be conducted through the pipe, cannot penetrate between the casting material and the pipe, nor can the medium be pressed out from between the casting material and the pipe. If necessary, the sealing complexity at the pipe connections can also be reduced.

Problems solved by technology

At the pipe connections, the medium to be conducted through the pipe can then undesirably enter such gaps and escape elsewhere.

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